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From: "Hans-Jürgen Koch" <hjk@linutronix.de>
To: linux-kernel@vger.kernel.org, Greg KH <greg@kroah.com>
Subject: UIO sysfs attributes broken in 2.6.25-rc1
Date: Wed, 13 Feb 2008 18:03:04 +0100	[thread overview]
Message-ID: <20080213180304.4ffa81e9@dilbert.local> (raw)

In 2.6.25-rc1, there's a strange effect:
Although the map attributes "addr" and "size" show up correctly:

-r--r--r-- 1 root root 4096 2008-02-13 17:49 addr
-r--r--r-- 1 root root 4096 2008-02-13 17:49 size

you cannot access them, not even as root. Something like "cat addr"
fails with a no-permission-error. It works fine in 2.6.24-rc8.

This is probably related to this patch:

http://lkml.org/lkml/2008/1/25/149

Unfortunately, I signed-off that one, too... I checked if all sysfs
files appear, but didn't try to access them. Sorry.

Greg, any ideas?

Thanks,
Hans

             reply	other threads:[~2008-02-13 17:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-13 17:03 Hans-Jürgen Koch [this message]
2008-02-13 17:33 ` UIO sysfs attributes broken in 2.6.25-rc1 Greg KH
2008-02-19  9:55   ` [PATCH] UIO: introduce sysfs_ops for map_attr_ktype Brandon Philips
2008-02-19 12:12     ` Hans-Jürgen Koch
2008-02-20  6:54     ` Greg KH

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